Too big for its britches.

Adding this DLC to your vanilla playthrough won't brick your save, but you'd wish it had.

It's not Gran Turismo's fault. The game is a spectacular version of itself. Well, there are some issues. Some of the cafe collections are real annoying. Progression getting held up by RNG or unclear objectives.

But the main reason this is a two star game for me is that I'm not a bored adolescent anymore with the time or inclination to grind a game like this to completion. It's just not compelling.